DA Series

Q: What are the insulating choices for DA Series Branch Joints?

227 Enterprises DA Series VRF/VRV Branch Joints are available with three options of insulation to accommodate various project specifications and environmental conditions: Cross-Linked Polyethylene (XLPE) insulation, Nitrile Butadiene Rubber (NBR) insulation and Expanded Polystyrene (EPS) insulation. Customers can select the most suitable insulation type according to parameters such as thermal performance, fire safety requirements, working conditions and project specifications. Our extensive line of insulations provide excellent energy efficiency, condensation control and durability for commercial, industrial and residential VRF HVAC systems.

DA Series delivers accurate refrigerant distribution, international quality and reliable performance for demanding VRF applications around the world.

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“The DA Series: Drop-in Compatible Branch Kits for major Japanese VRF Platforms”

The DA Series embodies 227 Enterprise’s commitment towards engineering accuracy, uncompromising quality and worldwide production excellence. This premium range of branch joints and refrigerant distribution components is designed for modern VRF/VRV and HVAC&R systems to provide flawlessly balanced refrigerant flow, remarkable joint integrity and reliable long-term performance where every connection counts.

Every DA Series component is manufactured with BIS certified refrigeration-grade copper tubes and under strict dimensions and quality controls to assure perfect fitment, reliable operation and uniform performance for every installation. DA Series VRF/VRV joints are available in quality XLPE, NBR and Expanded Polystyrene (EPS) insulation choices. The DA Series is manufactured to meet RoHS and Australian Standard AS4041 criteria and is available with factory-fitted insulation to improve thermal efficiency and speed up installation. Trusted by HVAC manufacturers, contractors and distributors in 35+ countries, the DA Series now embodies the precision, reliability and confidence that is the hallmark of every 227 Enterprise solution.

Product Features

Product Specification

Model	Pipe	Pipe A (ID)	Pipe B (ID)	Pipe C (ID)	Reducers Number & Qty
Pi-22T	Gas Side	19.05 (3/4)-15.88 (5/8) – 12.7 (1/2)	15.88 (5/8) – 12.7 (1/2) – 9.52 (3/8)	15.88 (5/8) – 12.7 (1/2)	1 X 1 Nos, 2 X 1 Nos
Pi-22T	Liquid Side	9.52 (3/8)	9.52 (3/8)-6.35 (1/4)	9.52 (3/8)-6.35 (1/4)
Pi-33T	Gas Side	19.05 (3/4)-22.22 (7/8)	19.05 (3/4) 15.88 (5/8)	15.88 (5/8) – 12.7 (1/2)	1 X 1 Nos, 2 X 1 Nos, 3 X 1 Nos
Pi-33T	Liquid Side	9.52 (3/8)-12.7 (1/2)	9.52 (3/8)-6.35 (1/4)	9.52 (3/8)-6.35 (1/4)
Pi-72T	Gas Side	25.4 (1)-28.58 (1-1/8) – 31.75 (1-1/4)	25.4 (1) 19.05 (3/4) – 15.88 (5/8)	19.05 (3/4)-15.88 (5/8) – 12.7 (1/2)	4 X 1 Nos, 2 X 1 Nos, 5 X 1 Nos
Pi-72T	Liquid Side	12.7 (1/2)-15.88 (5/8)	12.7 (1/2)-9.52 (3/8)	12.7 (1/2) -9.52 (3/8) – 6.35 (1/4)	1 X 1 Nos, 6 X 1 Nos, 7 X 1 Nos
Pi-73T	Gas Side	31.75 (1-1/4) – 38.10 (1-1/2)	31.75 (1-1/4)-28.58 (1-1/8) – 25.4 (1)	25.4 (1)-19.05 (3/4) – 15.88 (5/8)	7 X 2 Nos, 5 X 1 Nos, 9 X 1 Nos, 8 X 1 Nos
Pi-73T	Liquid Side	19.05 (3/4) 15.88 (5/8)	19.05 (3/4)-15.88 (5/8) – 12.7 (1/2)	15.88 (5/8) 12.7 (1/2)0 – 9.52 (3/8)	1 X 1 Nos, 10 X 1 Nos

Reducer Number & Size

1	19.05 (3/4) ID X 15.88 (5/8) OD	6	15.88 (5/8) ID X 12.7 (1/2) OD
2	22.22 (7/8) ID X 19.05 (3/4) OD	7	38.10 (1-1/2) ID X 31.75 (1-1/4) OD
3	25.4 (1) ID X 22.22 (7/8) OD	8	12.7 (1/2) ID X 15.88 (5/8) OD
4	25.4 (1) ID X 22.22 (7/8) ID X 22.22 (7/8) ID X 19.05 (3/4) OD	9	31.75 (1-1/4) ID X 28.58 (1-1/8) OD
5	28.58 (1-1/8) ID X 25.4 (1) OD	10	6.35 (1/4) ID X 9.52 (3/8) OD

Model Number	Reducers Size & Qty
Pi-72TP Set	28.6 (1-1/8) ID X 25.4 (1) OD X 19.05 (3/4) OD X 1 Nos 28.6 (1-1/8) ID X 25.4 (1) OD X 1 Nos
Pi-73TP Set	41.3 (1-5/8) ID X 38.10 (1-1/2) OD X 1 Nos 41.3 (1-5/8) ID X 35.1 (1-3/8) OD X 31.8 (1-1/4) OD X 1 Nos 41.3 (1-5/8) ID X 38.10 (1-1/2) OD X 1 Nos 34.8 (1-3/8) ID X 31.8 (1-1/4) OD X 3 Nos 28.6 (1-1/8) ID X 25.4 (1) OD X 19.05 (3/4) OD X 1 Nos

Model	Pipe	Pipe A (ID)	Pipe B (ID)	Pipe C (ID)	Reducers Number & Qty
Pi-22T	Gas Side	19.05 (3/4)-15.88 (5/8) - 12.7 (1/2)	15.88 (5/8) - 12.7 (1/2) - 9.52 (3/8)	15.88 (5/8) - 12.7 (1/2)	1 X 1 Nos, 2 X 1 Nos
Pi-22T	Liquid Side	9.52 (3/8)	9.52 (3/8)-6.35 (1/4)	9.52 (3/8)-6.35 (1/4)
Pi-33T	Gas Side	19.05 (3/4)-22.22 (7/8)	19.05 (3/4) 15.88 (5/8)	15.88 (5/8) - 12.7 (1/2)	1 X 1 Nos, 2 X 1 Nos, 3 X 1 Nos
Pi-33T	Liquid Side	9.52 (3/8)-12.7 (1/2)	9.52 (3/8)-6.35 (1/4)	9.52 (3/8)-6.35 (1/4)
Pi-72T	Gas Side	25.4 (1)-28.58 (1-1/8) - 31.75 (1-1/4)	25.4 (1) 19.05 (3/4) - 15.88 (5/8)	19.05 (3/4)-15.88 (5/8) - 12.7 (1/2)	4 X 1 Nos, 2 X 1 Nos, 5 X 1 Nos
Pi-72T	Liquid Side	12.7 (1/2)-15.88 (5/8)	12.7 (1/2)-9.52 (3/8)	12.7 (1/2) -9.52 (3/8) - 6.35 (1/4)	1 X 1 Nos, 6 X 1 Nos, 7 X 1 Nos
Pi-73T	Gas Side	31.75 (1-1/4) - 38.10 (1-1/2)	31.75 (1-1/4)-28.58 (1-1/8) - 25.4 (1)	25.4 (1)-19.05 (3/4) - 15.88 (5/8)	7 X 2 Nos, 5 X 1 Nos, 9 X 1 Nos, 8 X 1 Nos
Pi-73T	Liquid Side	19.05 (3/4) 15.88 (5/8)	19.05 (3/4)-15.88 (5/8) - 12.7 (1/2)	15.88 (5/8) 12.7 (1/2)0 - 9.52 (3/8)	1 X 1 Nos, 10 X 1 Nos

Reducer Number & Size
1	19.05 (3/4) ID X 15.88 (5/8) OD	6	15.88 (5/8) ID X 12.7 (1/2) OD
2	22.22 (7/8) ID X 19.05 (3/4) OD	7	38.10 (1-1/2) ID X 31.75 (1-1/4) OD
3	25.4 (1) ID X 22.22 (7/8) OD	8	12.7 (1/2) ID X 15.88 (5/8) OD
4	25.4 (1) ID X 22.22 (7/8) ID X 22.22 (7/8) ID X 19.05 (3/4) OD	9	31.75 (1-1/4) ID X 28.58 (1-1/8) OD
5	28.58 (1-1/8) ID X 25.4 (1) OD	10	6.35 (1/4) ID X 9.52 (3/8) OD

Model Number	Reducers Size & Qty
Pi-72TP Set	28.6 (1-1/8) ID X 25.4 (1) OD X 19.05 (3/4) OD X 1 Nos 28.6 (1-1/8) ID X 25.4 (1) OD X 1 Nos
Pi-73TP Set	41.3 (1-5/8) ID X 38.10 (1-1/2) OD X 1 Nos 41.3 (1-5/8) ID X 35.1 (1-3/8) OD X 31.8 (1-1/4) OD X 1 Nos 41.3 (1-5/8) ID X 38.10 (1-1/2) OD X 1 Nos 34.8 (1-3/8) ID X 31.8 (1-1/4) OD X 3 Nos 28.6 (1-1/8) ID X 25.4 (1) OD X 19.05 (3/4) OD X 1 Nos

Why 227 Enterprise

227 Enterprise Pvt. Ltd. is a manufacturer of Precision Engineered DA Series Branch Piping Kits for Modern VRF/VRV Air Conditioning Systems with R410A and R32 Refrigerants. Each kit is manufactured from high quality copper brazed with 2% silver (BCuP-6) alloy and 100% pressure tested at 5.2 MPa to guaranty leak free operation, reliability and to meet the requirements of worldwide HVAC&R standards. DA Series VRF joints are available in quality XLPE, NBR and Expanded Polystyrene (EPS) insulation choices. Our branch piping kits are designed to be fully compatible with multiple VRF/VRV systems, and are trusted by OEMs, HVAC contractors and distributors throughout the world. For standard or bulk OEM supply, 227 Enterprise is your trusted manufacturing partner for precision HVAC&R copper solutions, providing world-class quality, competitive value and consistent on-time delivery.

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Product Faqs

What is a DA Series Branch Joint?

VRF/VRV DA Series Branch Joint is a refrigerant distribution fitting for VRF/VRV air conditioning systems. It separates the refrigerant from the main pipeline to different interior units, providing balanced flow of refrigerant, reliable functioning of the system and maximum HVAC performance. DA Series Branch Joints are commonly utilized in commercial, industrial and residential VRF installations.

How do I select the correct DA Series branch joint for my HVAC job?

Selecting the correct DA Series VRF/VRV Branch Joint is simple. 227 Enterprise manufactures DA Series Branch Joints to OEM specifications in model numbers that match other top VRF/VRV system manufacturers. The customer can choose the correct branch joint by model number from SLD, project drawing or equipment schedule. If you need assistance, our technical team can help you identify the correct DA Series Branch Joint to ensure proper fitment, dependable refrigerant distribution and optimal VRF/VRV system performance.

Pressure testing of the DA Series Branch Joints.

Yes. All DA Series VRF/VRV Branch Joints made by 227 Enterprise are hydrostatically pressure tested to 5.2 MPa (754 PSI) for leak-free performance, structural integrity and reliable operation. Each DA Series branch junction goes through strict quality checks before shipping to ensure it satisfies the performance standards of today’s VRF/VRV HVAC systems and provides reliable long-term operation in commercial and industrial applications.

What are the insulating choices for DA Series Branch Joints?

227 Enterprise's DA Series VRF/VRV Branch Joints are available with three options of insulation to accommodate various project specifications and environmental conditions: Cross-Linked Polyethylene (XLPE) insulation, Nitrile Butadiene Rubber (NBR) insulation and Expanded Polystyrene (EPS) insulation. Customers can select the most suitable insulation type according to parameters such as thermal performance, fire safety requirements, working conditions and project specifications. Our extensive line of insulations provide excellent energy efficiency, condensation control and durability for commercial, industrial and residential VRF HVAC systems.

What is the delivery time of DA Series Branch Joints?

227 Enterprise has most standard DA Series VRF/VRV Branch Joint models for immediate dispatch in many instances. Delivery time depends on the model requested, the quantity ordered and the location. Standard amounts are normally in stock for immediate shipment, but larger quantities or special orders may take additional time to produce. For larger quantities we recommend that you contact our sales team with your model numbers and quantities for a precise shipment plan and anticipated delivery time.